Cross sections for the coherent photoproduction of ρ vector mesons in ultra-peripheral Pb-Pb collisions at sNN = 5.02 TeV are reported. The measurements, which rely on the π π decay channel, are presented in three regions of rapidity covering the range |y| < 0.8. For each rapidity interval, cross sections are shown for different nuclear-breakup classes defined according to the presence of neutrons measured in the zero-degree calorimeters. The results are compared with predictions based on different models of nuclear shadowing. Finally, the observation of a coherently produced resonance-like structure with a mass around 1.7 GeV/c and a width of about 140 MeV/c is reported and compared with similar observations from other experiments. [Figure not available: see fulltext.] 0 + − 2 2

Inclusive ψ(2S) production is measured in p-Pb collisions at the centre-of-mass energy per nucleon-nucleon pair sNN = 8.16 TeV, using the ALICE detector at the CERN LHC. The production of ψ(2S) is studied at forward (2.03 < y < 3.53) and backward (−4.46 < y < −2.96) centre-of-mass rapidity and for transverse momentum p < 12 GeV/c via the decay to muon pairs. In this paper, we report the integrated as well as the y - and p -differential inclusive production cross sections. Nuclear effects on ψ(2S) production are studied via the determination of the nuclear modification factor that shows a strong suppression at both forward and backward centre-of-mass rapidities. Comparisons with corresponding results for inclusive J/ψ show a similar suppression for the two states at forward rapidity (p-going direction), but a stronger suppression for ψ(2S) at backward rapidity (Pb-going direction). As a function of p , no clear dependence of the nuclear modification factor is found. The relative size of nuclear effects on ψ(2S) production compared to J/ψ is also studied via the double ratio of production cross sections [σ /σ ]pPb/[σ /σ ] between p-Pb and pp collisions. The results are compared with theoretical models that include various effects related to the initial and final state of the collision system and also with previous measurements at sNN = 5.02 TeV. [Figure not available: see fulltext.] cms cms T cms T T ψ(2S) J/ψ ψ(2S) J/ψ pp

Inclusive J/ψ yields and average transverse momenta in p-Pb collisions at a center-of-mass energy per nucleon pair sNN = 8.16 TeV are measured as a function of the charged-particle pseudorapidity density with ALICE. The J/ψ mesons are reconstructed at forward (2.03 < y < 3.53) and backward (−4.46 < y < −2.96) center-of-mass rapidity in their dimuon decay channel while the charged-particle pseudorapidity density is measured around midrapidity. The J/ψ yields at forward and backward rapidity normalized to their respective average values increase with the normalized charged-particle pseudorapidity density, the former showing a weaker increase than the latter. The normalized average transverse momenta at forward and backward rapidity manifest a steady increase from low to high charged-particle pseudorapidity density with a saturation beyond the average value. [Figure not available: see fulltext.] cms cms

Systematic studies of charge-dependent two- and three-particle correlations in Pb-Pb collisions at sNN = 2.76 and 5.02 TeV used to probe the Chiral Magnetic Effect (CME) are presented. These measurements are performed for charged particles in the pseudorapidity (η) and transverse momentum (p ) ranges |η| < 0.8 and 0.2 < p < 5 GeV/c. A significant charge-dependent signal that becomes more pronounced for peripheral collisions is reported for the CME-sensitive correlators γ = 〈cos(φ + φ − 2Ψ )〉 and γ = 〈cos(φ − 3φ + 2Ψ )〉. The results are used to estimate the contribution of background effects, associated with local charge conservation coupled to anisotropic flow modulations, to measurements of the CME. A blast-wave parametrisation that incorporates local charge conservation tuned to reproduce the centrality dependent background effects is not able to fully describe the measured γ . Finally, the charge and centrality dependence of mixed-harmonics three-particle correlations, of the form γ = 〈cos(φ + 2φ − 3Ψ )〉, which are insensitive to the CME signal, verify again that background contributions dominate the measurement of γ . [Figure not available: see fulltext.] T T 1, 1 α β 2 1, − 3 α β 2 1,1 1, 2 α β 3 1,1

The inclusive J/ψ elliptic (v ) and triangular (v ) flow coefficients measured at forward rapidity (2.5 < y < 4) and the v measured at midrapidity (|y| < 0.9) in Pb-Pb collisions at sNN = 5.02 TeV using the ALICE detector at the LHC are reported. The entire Pb-Pb data sample collected during Run 2 is employed, amounting to an integrated luminosity of 750 μb at forward rapidity and 93 μb at midrapidity. The results are obtained using the scalar product method and are reported as a function of transverse momentum p and collision centrality. At midrapidity, the J/ψ v is in agreement with the forward rapidity measurement. The centrality averaged results indicate a positive J/ψ v with a significance of more than 5σ at forward rapidity in the p range 2 < p < 5 GeV/c. The forward rapidity v , v , and v /v results at low and intermediate p (p ≲ 8 GeV/c) exhibit a mass hierarchy when compared to pions and D mesons, while converging into a species-independent curve at higher p . At low and intermediate p , the results could be interpreted in terms of a later thermalization of charm quarks compared to light quarks, while at high p , path-length dependent effects seem to dominate. The J/ψ v measurements are further compared to a microscopic transport model calculation. Using a simplified extension of the quark scaling approach involving both light and charm quark flow components, it is shown that the D-meson v measurements can be described based on those for charged pions and J/ψ flow. [Figure not available: see fulltext.] 2 3 2 T 2 3 T T 2 3 3 2 T T T T T 2 n −1 −1

This paper presents the measurements of π , K , p and p ¯ transverse momentum (p ) spectra as a function of charged-particle multiplicity density in proton–proton (pp) collisions at s=13TeV with the ALICE detector at the LHC. Such study allows us to isolate the center-of-mass energy dependence of light-flavour particle production. The measurements reported here cover a p range from 0.1 to 20 GeV / c and are done in the rapidity interval | y| < 0.5. The p -differential particle ratios exhibit an evolution with multiplicity, similar to that observed in pp collisions at s=7TeV, which is qualitatively described by some of the hydrodynamical and pQCD-inspired models discussed in this paper. Furthermore, the p -integrated hadron-to-pion yield ratios measured in pp collisions at two different center-of-mass energies are consistent when compared at similar multiplicities. This also extends to strange and multi-strange hadrons, suggesting that, at LHC energies, particle hadrochemistry scales with particle multiplicity the same way under different collision energies and colliding systems. ± ± T T T T

Measurement of Z-boson production in p-Pb collisions at sNN = 8.16 TeV and Pb-Pb collisions at sNN = 5.02 TeV is reported. It is performed in the dimuon decay channel, through the detection of muons with pseudorapidity −4 < η < −2.5 and transverse momentum pTμ> 20 GeV/c in the laboratory frame. The invariant yield and nuclear modification factor are measured for opposite-sign dimuons with invariant mass 60 < m < 120 GeV/c and rapidity 2.5

Anisotropic flow coefficients, v , non-linear flow mode coefficients, χ , and correlations among different symmetry planes, ρ are measured in Pb-Pb collisions at sNN = 5.02 TeV. Results obtained with multi-particle correlations are reported for the transverse momentum interval 0.2 < p < 5.0 GeV/c within the pseudorapidity interval 0.4 < |η| < 0.8 as a function of collision centrality. The v coefficients and χ and ρ are presented up to the ninth and seventh harmonic order, respectively. Calculations suggest that the correlations measured in different symmetry planes and the non-linear flow mode coefficients are dependent on the shear and bulk viscosity to entropy ratios of the medium created in heavy-ion collisions. The comparison between these measurements and those at lower energies and calculations from hydrodynamic models places strong constraints on the initial conditions and transport properties of the system. [Figure not available: see fulltext.]. n n,mk n,mk T n n,mk n,mk

Measurements of the inclusive J/ψ yield as a function of charged-particle pseudorapidity density dN /dη in pp collisions at s=13 TeV with ALICE at the LHC are reported. The J/ψ meson yield is measured at midrapidity (|y|<0.9) in the dielectron channel, for events selected based on the charged-particle multiplicity at midrapidity (|η|<1) and at forward rapidity (−3.7<η<−1.7 and 2.8<η<5.1); both observables are normalized to their corresponding averages in minimum bias events. The increase of the normalized J/ψ yield with normalized dN /dη is significantly stronger than linear and dependent on the transverse momentum. The data are compared to theoretical predictions, which describe the observed trends well, albeit not always quantitatively. ch ch

This paper presents isolated photon-hadron correlations using pp and p-Pb data collected by the ALICE detector at the LHC. For photons with |η|<0.67 and 12